Novel submarine cable bending limiting device

Abstract

The utility model relates to a novel submarine cable bending limiting device which comprises an outer shell and an inner shell, the inner shell is fixedly installed in the outer shell, and the shape of the inner shell is consistent with that of the outer shell; one end of the outer shell and one end of the inner shell outwards form an annular protrusion, the other end of the outer shell and the other end of the inner shell form an annular groove matched with the annular protrusion in shape, a clamping groove is formed in the outer shell, and a clamping block is arranged in the inner shell and matched with the clamping groove of the outer shell. The bending limiting device adopts the inner shell and the outer shell for protection, the inner shell is made of metal, the stability of the submarine cable can be improved, meanwhile, the metal strength is high, the swinging of the submarine cable can be reduced, and the outer shell is provided with the polyurethane wear-resistant layer. Abrasion and fatigue damage to the submarine cable caused by natural factors such as vortex-induced vibration and sea flushing in the ocean can be reduced, so that damage caused by bending of the submarine cable can be effectively reduced, and safe and stable operation of the submarine cable is guaranteed.

Description

Technical Field

[0001] This utility model discloses a submarine cable bending restriction, belonging to the technical field of submarine cable bending restriction structure, specifically relating to a novel submarine cable bending restriction device. Background Technology

[0002] The hazards of bending submarine cables include mechanical damage: when a submarine cable is bent, especially with a small bending radius, the cable conductor may loosen and bulge, and even the insulation and metal shielding layers may be damaged, thus affecting the cable's transmission performance and service life. It also increases heat loss: when a submarine cable bends, the fluid inside the conduit generates frictional heat, leading to increased heat loss and reduced conduit capacity. Therefore, a submarine cable bending limiting device is needed to protect the cable. Utility Model Content

[0003] Purpose of the utility model: To provide a novel submarine cable bending limiting device to solve the problems mentioned above.

[0004] Technical solution: A novel submarine cable bending limiting device, comprising: an outer shell and an inner shell, wherein the inner shell is fixedly installed inside the outer shell and the inner shell has the same shape as the outer shell;

[0005] In a further embodiment, one end of the outer shell and the inner shell forms an outward annular protrusion, and the other end forms an annular groove that matches the shape of the annular protrusion. The outer shell is provided with a slot, and the inner shell is provided with a locking block that cooperates with the slot of the outer shell.

[0006] In a further embodiment, the annular protrusion is provided with a fixing through hole, and the annular groove is provided with a threaded hole at the connection between the groove and the housing.

[0007] In a further embodiment, the center of the fixing through hole and the threaded hole of the outer shell are aligned with those of the inner shell.

[0008] In a further embodiment, the inner housing is provided with a plurality of circular holes.

[0009] In a further embodiment, the inner shell is composed of two identical and symmetrical half-shells.

[0010] In a further embodiment, the bending limiting device is composed of several adjacent bending limiting devices connected end to end, and the annular protrusion of the outer shell of the next bending limiting device is aligned with the annular groove of the outer shell of the previous bending limiting device.

[0011] In a further embodiment, the outer shell is covered with a polyurethane wear-resistant layer.

[0012] In a further embodiment, the inner housing is made of metal.

[0013] Beneficial effects: The bending limiting device of this utility model adopts a double shell for protection. The inner shell is made of metal, which can increase the stability of the submarine cable. At the same time, the high strength of the metal can reduce the swaying of the submarine cable. The outer shell is equipped with a polyurethane wear-resistant layer, which can reduce the wear and fatigue damage to the submarine cable caused by natural factors such as eddy vibration and ocean washing. Thus, this utility model can effectively reduce the harm caused by bending of the submarine cable and ensure its safe and stable operation. Attached Figure Description

[0014] Figure 1 This is a front view of the outer casing of this utility model.

[0015] Figure 2 This is a cross-sectional view of the outer casing of this utility model.

[0016] Figure 3 This is a cross-sectional view of the bending limiting device of this utility model. Figure 1 .

[0017] Figure 4 This is a cross-sectional view of the bending limiting device of this utility model. Figure 2 .

[0018] Figure 5 This is a front view of the inner shell of this utility model.

[0019] Figure 6 This is the inner shell of the utility model. Figure 1 .

[0020] Figure 7 This is the inner shell of the utility model. Figure 2 .

[0021] Figure 8 This is a schematic diagram of the installation of the bending limiting device of this utility model.

[0022] Reference numerals: 1. Outer shell; 2. Inner shell; 3. Annular protrusion; 4. Annular groove; 5. Slot; 6. Locking block; 7. Fixing through hole; 8. Threaded hole; 9. Round hole; 10. Half shell; 11. Bending limiting device. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] A novel submarine cable bending limiting device includes: an outer shell 1 and an inner shell 2.

[0027] In one embodiment, such as Figures 1 to 7 As shown, the inner shell 2 is fixedly installed inside the outer shell 1, and the inner shell 2 has the same shape as the outer shell 1;

[0028] In one embodiment, such as Figures 1 to 7 As shown, the outer shell 1 and the inner shell 2 have an annular protrusion 3 formed outward at one end and an annular groove 4 that matches the shape of the annular protrusion 3 at the other end. The outer shell 1 is provided with a slot 5, and the inner shell 2 is provided with a locking block 6 that cooperates with the slot 5 of the outer shell 1.

[0029] In one embodiment, such as Figures 1 to 7 As shown, the annular protrusion 3 is provided with a fixed through hole 7, and the annular groove 4 is provided with a threaded hole 8 at the connection with the shell.

[0030] In one embodiment, such as Figures 1 to 7 As shown, the center of the fixed through hole 7 and the threaded hole 8 of the outer shell 1 and the inner shell 2 are aligned.

[0031] In one embodiment, such as Figures 1 to 7 As shown, the inner shell 2 has several circular holes 9.

[0032] In one embodiment, such as Figures 1 to 7 As shown, the inner shell 2 is composed of two identical and symmetrical half-shells 10.

[0033] In one embodiment, such as Figure 8 As shown, the bending limiting device 11 is composed of several adjacent bending limiting devices 11 connected end to end, and the annular protrusion 3 of the outer shell 1 of the next bending limiting device 11 is connected to the annular groove 4 of the outer shell 1 of the previous bending limiting device 11.

[0034] In one embodiment, such as Figures 1 to 7 As shown, in one embodiment, the outer shell 1 is covered with a polyurethane wear-resistant layer, such as... Figures 1 to 7 As shown, the inner shell 2 is made of metal.

[0035] Working principle: First, the two halves of the inner shell 2 10 are fixedly installed in the slots 5 of the outer shell 1 using the locking blocks 6. Then, bolts and nuts are used to fix them through the fixing through holes 7 on the inner shell 2 and the outer shell 1, thereby completing the assembly of the bending limiting device 11. In use, the ends of the bending limiting device 11 are connected, and the cable is bent into the bending limiting device 11 in sequence. The outer shell 1 is fixed in the designated position through the threaded holes 8, which can effectively reduce the damage caused by the bending of the submarine cable and ensure its safe and stable operation.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A novel submarine cable bending limiting device, characterized in that, The bending limiting device includes: an outer shell and an inner shell, wherein the inner shell is fixedly installed inside the outer shell and the inner shell has the same shape as the outer shell; The outer shell and the inner shell each have an outwardly formed annular protrusion at one end and an annular groove at the other end that matches the shape of the annular protrusion. The outer shell has a slot, and the inner shell has a block that engages with the slot of the outer shell.

2. The novel submarine cable bending limiting device according to claim 1, characterized in that, The annular protrusion is provided with a fixed through hole, and the annular groove is provided with a threaded hole at the connection between the groove and the shell.

3. The novel submarine cable bending limiting device according to claim 2, characterized in that, The center of the fixed through hole and the threaded hole of the outer shell are aligned with those of the inner shell.

4. The novel submarine cable bending limiting device according to claim 1, characterized in that, The inner shell has several circular holes.

5. The novel submarine cable bending limiting device according to claim 1, characterized in that, The inner shell is composed of two identical and symmetrical half-shells.

6. The novel submarine cable bending limiting device according to claim 1, characterized in that, The bending limiting device is composed of several adjacent bending limiting devices connected end to end, with the annular protrusion of the outer shell of the next bending limiting device engaging with the annular groove of the outer shell of the previous bending limiting device.

7. The novel submarine cable bending limiting device according to claim 1, characterized in that, The outer shell is covered with a polyurethane wear-resistant layer.

8. The novel submarine cable bending limiting device according to claim 1, characterized in that, The inner shell is made of metal.

Images